My car idles too low and spikes up while driving. My tach jumps all over the place, and my car feels like its dragging. When I'm at a light and stopped, my idle will automatically jump to 2 grand and go back down and back up. My car only idles normally when placed in neutral.

Optional Information:
1998 Dodge Neon 2.0

Already Tried:
Cam sensor Neutral safety switch Crank sensor Throttle body